/* ===== CSS Variables ===== */
:root {
    --blue-50: #EFF6FF;
    --blue-100: #DBEAFE;
    --blue-200: #BFDBFE;
    --blue-300: #93C5FD;
    --blue-400: #60A5FA;
    --blue-500: #3B82F6;
    --blue-600: #2563EB;
    --blue-700: #1D4ED8;
    --blue-800: #1E40AF;
    --blue-900: #1E3A8A;
    --sky-400: #38BDF8;
    --sky-500: #0EA5E9;
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #526175;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --gradient: linear-gradient(135deg, #2563EB 0%, #0EA5E9 100%);
    --gradient-text: linear-gradient(135deg, #2563EB 0%, #0EA5E9 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);
    --shadow-blue: 0 10px 40px -10px rgba(37, 99, 235, 0.3);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: 'Inter', 'Noto Sans Thai', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

/* ===== Container ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Typography ===== */
h1, h2, h3, h4 { color: var(--gray-900); line-height: 1.3; }
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius); }
.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 44px -10px rgba(37, 99, 235, 0.45); }
.btn-outline {
    background: transparent;
    color: var(--blue-600);
    border: 2px solid var(--blue-200);
}
.btn-outline:hover { border-color: var(--blue-600); background: var(--blue-50); }
.btn-white {
    background: var(--white);
    color: var(--blue-600);
    font-weight: 700;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-xl); }
.btn-outline-white {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.15); border-color: var(--white); }
.btn-full { width: 100%; justify-content: center; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--gray-900);
}
.logo-accent { color: var(--blue-600); }
.nav-links { display: flex; gap: 8px; }
.nav-link {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-600);
}
.nav-link:hover, .nav-link.active { color: var(--blue-600); background: var(--blue-50); }
.nav-cta { display: flex; }
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.menu-toggle span {
    width: 24px;
    height: 2.5px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 140px 0 100px;
    background: linear-gradient(180deg, var(--blue-50) 0%, var(--white) 100%);
    overflow: hidden;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.08;
    background: var(--gradient);
}
.shape-1 { width: 600px; height: 600px; top: -200px; right: -100px; }
.shape-2 { width: 400px; height: 400px; bottom: -100px; left: -100px; }
.shape-3 { width: 200px; height: 200px; top: 50%; left: 50%; }

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: var(--white);
    border: 1px solid var(--blue-200);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--blue-600);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}
.badge-dot {
    width: 8px;
    height: 8px;
    background: #22C55E;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray-500);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 32px; align-items: center; }
.stat-divider { width: 1px; height: 40px; background: var(--gray-200); }
.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--gray-900);
    display: inline;
}
.stat-plus { font-size: 1.5rem; font-weight: 800; color: var(--blue-600); }
.stat-label { display: block; font-size: 0.85rem; color: var(--gray-400); font-weight: 500; margin-top: 2px; }

/* Hero Image */
.hero-image { position: relative; }
.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}
.hero-image-wrapper img { width: 100%; height: auto; }
.hero-float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    padding: 14px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}
.hero-float-card.card-1 { bottom: 24px; left: -30px; animation-delay: 0s; }
.hero-float-card.card-2 { top: 24px; right: -30px; animation-delay: 1.5s; }
.float-icon { font-size: 1.5rem; }
.float-title { display: block; font-weight: 700; font-size: 0.85rem; color: var(--gray-900); }
.float-desc { font-size: 0.78rem; color: var(--gray-400); }
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ===== Section Headers ===== */
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: var(--blue-50);
    color: var(--blue-600);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid var(--blue-100);
}
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.section-title.left-align { text-align: left; }
.section-desc {
    font-size: 1.1rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Services ===== */
.services { padding: 120px 0; background: var(--gray-50); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--blue-200);
}
.service-card.featured {
    background: var(--gradient);
    border-color: transparent;
    color: rgba(255,255,255,0.85);
}
.service-card.featured h3 { color: var(--white); }
.service-card.featured .service-icon { background: rgba(255,255,255,0.2); color: var(--white); }
.service-card.featured .service-link { color: var(--white); }
.service-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: #FBBF24;
    color: var(--gray-900);
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
}
.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: var(--blue-50);
    color: var(--blue-600);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.service-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.service-card p { font-size: 0.92rem; line-height: 1.7; margin-bottom: 20px; }
.service-link { font-size: 0.9rem; font-weight: 600; color: var(--blue-600); }
.service-link:hover { gap: 4px; }

/* ===== Portfolio ===== */
.portfolio { padding: 120px 0; }
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.portfolio-card { border-radius: var(--radius-lg); overflow: hidden; }
.portfolio-image {
    position: relative;
    height: 320px;
    overflow: hidden;
    border-radius: var(--radius-lg);
}
.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.portfolio-card:hover .portfolio-image img { transform: scale(1.08); }
.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(15, 23, 42, 0.9) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
    color: var(--white);
    opacity: 0;
    transition: var(--transition);
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }
.portfolio-category {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(255,255,255,0.2);
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 12px;
    width: fit-content;
    backdrop-filter: blur(10px);
}
.portfolio-overlay h3 { color: var(--white); font-size: 1.15rem; margin-bottom: 6px; }
.portfolio-overlay p { font-size: 0.85rem; color: rgba(255,255,255,0.7); }

/* ===== Process ===== */
.process { padding: 120px 0; background: var(--gray-50); }
.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}
.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: var(--blue-200);
}
.process-step { text-align: center; position: relative; }
.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--white);
    border: 3px solid var(--blue-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--blue-600);
    margin: 0 auto 24px;
    position: relative;
    z-index: 2;
    transition: var(--transition);
}
.process-step:hover .step-number {
    background: var(--gradient);
    color: var(--white);
    border-color: transparent;
    transform: scale(1.1);
}
.step-content h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.step-content p { font-size: 0.88rem; color: var(--gray-500); line-height: 1.7; }

/* ===== About ===== */
.about { padding: 120px 0; }
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.about-image { border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-2xl); }
.about-image img { width: 100%; height: 100%; object-fit: cover; }
.about-desc { font-size: 1.05rem; color: var(--gray-500); margin-bottom: 32px; line-height: 1.8; }
.about-features { display: flex; flex-direction: column; gap: 14px; margin-bottom: 36px; }
.about-feature {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-700);
}
.feature-check {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--blue-50);
    color: var(--blue-600);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ===== Testimonials ===== */
.testimonials { padding: 120px 0; background: var(--gray-50); }
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testimonial-stars { color: #FBBF24; font-size: 1.1rem; margin-bottom: 16px; letter-spacing: 3px; }
.testimonial-card p { font-size: 0.95rem; color: var(--gray-600); margin-bottom: 24px; line-height: 1.8; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}
.testimonial-author strong { display: block; font-size: 0.9rem; color: var(--gray-900); }
.testimonial-author span { font-size: 0.8rem; color: var(--gray-400); }

/* ===== CTA ===== */
.cta { padding: 80px 0; }
.cta-card {
    background: var(--gradient);
    border-radius: var(--radius-xl);
    padding: 80px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
}
.cta-card::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}
.cta-card h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}
.cta-card .gradient-text {
    background: linear-gradient(135deg, #FDE68A, #FBBF24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cta-card p { color: rgba(255,255,255,0.8); font-size: 1.1rem; margin-bottom: 36px; position: relative; z-index: 1; }
.cta-actions { display: flex; justify-content: center; gap: 16px; position: relative; z-index: 1; flex-wrap: wrap; }

/* ===== Contact ===== */
.contact { padding: 120px 0; background: var(--gray-50); }
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}
.contact-item:hover { border-color: var(--blue-200); box-shadow: var(--shadow-md); }
.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: var(--blue-50);
    color: var(--blue-600);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 0.85rem; color: var(--gray-900); margin-bottom: 2px; }
.contact-item span { font-size: 0.88rem; color: var(--gray-500); }
.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--gray-700);
    background: var(--gray-50);
    transition: var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--blue-400);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='%2394A3B8'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; }

/* ===== Footer ===== */
.footer { background: var(--gray-900); color: var(--gray-400); padding: 80px 0 0; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: var(--white); }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 8px; }
.footer-links a { 
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.88rem; 
    transition: var(--transition); 
}
.footer-links a:hover { color: var(--blue-400); }
.footer-bottom { text-align: center; padding: 24px 0; font-size: 0.85rem; }

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-title { font-size: 2.8rem; }
    .section-title { font-size: 2rem; }
    .services-grid, .portfolio-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .process-timeline { grid-template-columns: repeat(2, 1fr); }
    .process-timeline::before { display: none; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .menu-toggle { display: flex; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 24px;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
    }
    .hero-container { grid-template-columns: 1fr; gap: 40px; }
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-stats { gap: 20px; }
    .stat-number { font-size: 1.8rem; }
    .hero-float-card.card-1 { left: 10px; }
    .hero-float-card.card-2 { right: 10px; }
    .services-grid, .testimonials-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .about-container { grid-template-columns: 1fr; gap: 40px; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .cta-card { padding: 48px 28px; }
    .cta-card h2 { font-size: 1.8rem; }
    .process-timeline { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .form-row { grid-template-columns: 1fr; }
    .section-title { font-size: 1.8rem; }
    .hero-image { order: -1; }
}